First class should be next day (there are targets and something like 90% should be next day).
However, there's a strike on right now so it could take days - there will be abacklog after the strike has finished.
about 2hours 50mins
It takes about 3 or 4 hours.
It depends on which service of Canada Post you use. Normally, it takes less than a week to deliver a package from Canada to United Kingdom. You can use the link below to track your package to know...
well, i would say 15 hours
about 13 1/2 hours